SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
The Top Tier of AMSOIL Synthetic Motor Oil
Product Code: AMR •
Brand: AMSOIL
Product Details
Tech Data
Reviews & RatingRelated Videos
Product Applications Product Application Specs • API SN, SM
Product Description
Protects Against Engine Wear   *Based on independent testing of AMSOIL Signature Series 0W-20, in ASTM D6891 as required by the API SN specification.
Protects Pistons from Low-Speed Pre-Ignition (LSPI) 
Protects Turbochargers 
Extends Drains: Protection Guaranteed Trusted by Professional Engine Builders Dedicated engine builders and mechanics put in long hours honing their craft. These architects of powerful, high-performance engines turn to Signature Series to protect their passion."When we use AMSOIL, I don't worry about a film breakdown or an oil breakdown - and the oil pressure is always consistent. We've tested oils back-to-back on the dyno in our shop and we're always able to make more power with AMSOIL." -Brett Bowers, Engine Masters Competitor and Professional Engine Builder Maximum Cleaning Power to Battle Sludge AMSOIL Signature Series Synthetic Motor Oil has 50 percent more detergents* to help keep oil passages clean and promote oil circulation. Engine failures due to sludge are often caused by a plugged oil pick-up tube screen - the motor is effectively starved of oil. The Sequence VG Engine Test measures an oil's ability to prevent sludge. During the test, a Ford 4.6L engine is subjected to sludge-inducing conditions for 216 hours. The industry standard allows for 10 percent blockage before the motor oil fails the test. Signature Series produced a screen virtually free from sludge (see image). Its detergent and dispersant additives are so effective, Signature Series provides 90 percent better protection against sludge. • *Based on independent testing of AMSOIL Signature Series 5w-30 motor oil, in the LSPI engine test as required for the GM dexos 1® Gen 2 specification. • *Based on independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coking test. • *vs. AMSOIL OE Motor Oil • *Based on independent testing of AMSOIL Signature Series 5W-30 in the ASTM D6593 engine test for oil screen plugging as required by the API SN specification. * All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use. All products advertised here are developed by AMSOIL for use in the applications shown.
Preserves Horsepower 
Limits Oil Consumption 
Easier Cold-Starts 
Maintains Protective Viscosity  • *Based on proposed ILSAC GF-5 Plus specification.
SERVICE LIFE COMPATIBILITYAMSOIL Signature Series Synthetic Motor Oil is compatiblewith other conventional and synthetic motor oils. Mixing other oils with AMSOIL motor oils, however, will shorten the oil’s life expectancy and reduce its performance benefits. AMSOIL does not support extended drain intervals where oils have been mixed.Aftermarket oil additives are not recommended for use with AMSOIL synthetic motor oils. HEALTH & SAFETY Click here to view the MSDS Data Sheet for AMSOIL AMR. Keep out of the reach of children. Don't pollute. Return used oil to collection centers.
LSPI Super Knock PreventionSequence IIIG Engine Test + Motor Oil ComparisonCold Flow Pour Test AMSOIL vs Conventional Motor Oil
Only oil/filter i will ever buyI use this oil in my 2013 F150 with the eco-boost 3.5L engine. Truck burns or uses zero oil between oil changes(once a year). I only drive about 7,000 miles a year. I use Amsoil because I know Amsoil makes the best products available. Item Reviewed: Signature Series Motor Oils
Long time userBeen using AMSOIL since the 70's in many cars and trucks. Sold one truck to a mechanic after 204K miles. He said it was the cleanest engine he' ever seen. Item Reviewed: Signature Series Motor Oils
If your not an Amsoil guy, your doing it wrongCustomer for 7 months. I can't say anything someone else hasn't said already. This was for my Dad's girlfriend car. We have my truck, his truck, her SUV, my mower all on amsoil. My truck is all done. Engine, tranny, rear end, transfer case. Waiting to put in coolant. It sells itself. They say everything drives.i use signature series and will never use anything else in any motor I ever own.dealerahips can say whatever they want, just stinks you have to change within a certain mileage to keep warranty cause this oil goes forever compared to rest. Use it and see!!!! Item Reviewed: Signature Series Motor Oils
Good oil, keeping the motor cleanI chose to go 0-40 for both cold flow and film strength at the running temps. Motor is getting cleaner every oil change and is running great. I tow with confidence and will continue to run the first in synthetics Item Reviewed: Signature Series Motor Oils
Best oil you can get!After switching over to AMSOIL Signiture Series 5W30 in my '07 Prius, I couldn't be happier. The gas motor is running very smoothly and more efficiently since I have owned it! Not too shabby considering it has 124K+ miles on it! This oil is the real deal. If you are serious about keeping your car in the best condition for as long as possible, there isn't a better oil out there that can deliver on that than AMSOIL. Item Reviewed: Signature Series Motor Oils
Best oil I have found yetBack in 2006 I have swivhed from other brands to Amsoil. Based on some independent test results, and most importantly a friend. Who have tested his 12000 mile oil being Amsoil, on 45000 mile vehicle, that used amsoil since new. Test results sugested fillowing: 1) oil is 6000-7000 mile old 2) engine is 15000-25000 miles old 3) if lubrication continues as before, engine should ladt over 300000 miles. Item Reviewed: Signature Series Motor Oils
Best stuffI have a 05 ram 2500 HD 250000 miles on it still runs like a dream Item Reviewed: Signature Series Motor Oils
In year's past ....I used this blend for years until I changed to the European blend and it worked very well .... Item Reviewed: Signature Series Motor Oils
YesGood Item Reviewed: Signature Series Motor Oils
Best oil you can buyThe highest quality oil for everything with and engine, hands down. Item Reviewed: Signature Series Motor Oils
Great stuffI've used Amsoil over the last 30 plus years and never had a problem with any of the product. I use it in offroad vehicles, 4x4 Jeeps, turbo charged engines, NA engines and anything else that benefits from a high quality synthetic lubricant. Item Reviewed: Signature Series Motor Oils
I have been using Amsoil products since 1984.I have been using Amsoil 100% synthetic engine oils in all my cars, my wife cars since 1984. Item Reviewed: Signature Series Motor Oils
Top quality oilI have used Amsoil signature oil for over a 100,000 miles in my vehicle. I tried other oils but they did not last or perform up to my standards. Item Reviewed: Signature Series Motor Oils
This is my go to for my truckI can go a long time between oil changes with the signature series 5W 20 oil, it is amazing how much better my truck has been running since I have been using it. I haven't found a con with it yet, just all pros! Item Reviewed: Signature Series Motor Oils
GREAT STUFFI have used Amsoil for many years, I use it in all my vehicles everything from my daily driver to my classic and antique cars, I even order it for my friends and family who all love how it works and the convenience of use ie. Once a year oil change. Item Reviewed: Signature Series Motor Oils
I would buy this oil again.............. ............. Item Reviewed: Signature Series Motor Oils
Good ProductAMSOIL Signature Series 5W-30 Motor Oil Item Reviewed: Signature Series Motor Oils
Great productThis product has Pierier antiwear property is Item Reviewed: Signature Series Motor Oils
I always use AmsoilI've been using Amsoil oil for more than 20 years so when I bought a used 2011 Toyota Highlander that requires 0W20 oil I chose Amsoil Signature. I noticed that the my SUV used less oil with Amsoil compared to whatever the dealership put in it. I've had several vehicles that even after 10,000 miles used virtually no oil when using Amsoil. Item Reviewed: Signature Series Motor Oils
I love the oil, all of it.I have been using Amsoil for years. Commutes for me is 40 to 50 kms oneway and I can run Amsoil and never have to add oil. Had an old car overheat in Calgary one summer due to traffic on the deerfoot trail and there was no problem afterwards with the car or the oil. Item Reviewed: Signature Series Motor Oils
I have bought this for years!I have used this product for years, it gives my vehicles top notch protection! Item Reviewed: Signature Series Motor Oils
Beats sliced bread and bottled beerI have used Amsoil products since 2003. Never a problem. I have recommended it to friends without any qualms. Item Reviewed: Signature Series Motor Oils
Best product ever, life time customerEver since discovering this oil in 2005 I've never used anything else, and it's never let me down. 15k miles between oil changes and it's still gold in color not black like others. Item Reviewed: Signature Series Motor Oils
Love this productI use the product in my 2013 Dodge Ram 5.7L. Item Reviewed: Signature Series Motor Oils
I will never buy another oil againI have used amsoil in my motorcycle and personal vehicles for years. All of them perform perfectly. Item Reviewed: Signature Series Motor Oils
I would buy this product again and againProduct works amazing! No issues Item Reviewed: Signature Series Motor Oils
I will buy all amsoil products especially oil an power foamLove the oil never had issues power foam is the best out there if ya know how to use it correctly.. very happy with the results and products.. Item Reviewed: Signature Series Motor Oils
I will use this for as long as I liveAmsoil is de bessss! Item Reviewed: Signature Series Motor Oils
Never lets you down Never fails. Actually works as advertizeSmilinjack has been using AMSOIL 1030,1040 2Cycle oil, Power Foam, oil and air filters and Performance Improver continually since 1979. Once we tried it, have never ever needed or used anything else. Automotive use, lawnmower, lawn tractor, boat motors and my portable generator all perform well with AmsOil in the crankcase. Excellent products. Knew a good thing when we first found it and will never go to anything else. EOM Item Reviewed: Signature Series Motor Oils
I use nothing but Amsoil for the last 8 years.Great product, love the extended drain capability. Item Reviewed: Signature Series Motor Oils
Amsoil Signature OilI have been using Amsoil in every vehicle I have owned for the past 15 years. I like the extra protection and only changing oil once a year. Item Reviewed: Signature Series Motor Oils
yesyour car runs great Item Reviewed: Signature Series Motor Oils
I keep this stuff in my shop by the case.I just had a 600 horse 460 Ford built and put in my truck and this oil is the best insurance for a hydraulic roller cam motor in my honest opinion.. Item Reviewed: Signature Series Motor Oils
Great product at any priceThis product goes in all my vehicles! Item Reviewed: Signature Series Motor Oils
Will buy againUsed it in my 2015 Ford Fiesta rally car. Seems to be working. Item Reviewed: Signature Series Motor Oils
ONLY THE BEST WILL DO!!Well, I am not the guy who owns a mega-truck or 5 SUV's. I have the "love of my life" who's stuck with me for 38 years and a major cardiac failure. My goal is to make sure that this investment of my life sticks around for awhile. Everyday she gets in her 2013 Honda CR-V and takes to the roads. Her rig WILL have the BEST I can afford protecting her. This is why when it comes to the products you make, they will be used. When the BEST is used there is no need for excuses! Item Reviewed: Signature Series Motor Oils
Don't know where to start when talking about GREAT PRODUCTS!I have been around cars and trucks since I was 11 years old...rebuilding, normal maintenance, restoring, and mechanical. At almost 70 I can tell you that my pride and joy is a 1998 Chrysler Town & Country LXI mini van. I proudly have 385K Amsoil miles and it still runs like new. I get exceptional mileage, no smoke from exhaust, no rough idling, no engine noise (that most older motors get), and can say after sitting in the drivers seat all those miles...I still love to drive it and see what new gets better! I am constantly surprised at how smooth a quiet the motor runs. When I take it get my tires rotated they always comment on how well it runs...here is the irony. When trying to explain about additives there is a blank look as people just don't understand that synthetic oil is engineered not manufactured. A lot of time, research dollars, and effort has gone into the making of each product. I will always explain the benefits of Amsoil when asked...just get tired of people that are ignorant to the science and technology that has made this product what it is. I have been a 20+ year user and will always continue! Thanks Amsoil for sticking to your desire to be the best! Item Reviewed: Signature Series Motor Oils
I will buy this product againI use this in all my car's and trucks Item Reviewed: Signature Series Motor Oils
I wont buy anything else!!Best oil on the market! Item Reviewed: Signature Series Motor Oils
I like AmsoilI've been using Amsoil products for many years. I don't have to worry if I've gone over the 5,000 mile interval, because I know Amsoil will protect my engines. The oil filters are top grade, and great to use with Amsoil. I also use many other AMSOIL products. The gun cleaner and gun oil is excellent for my police service revolver and I use it faithfully, knowing it will protect my pistol, shotgun and assault weapon. The cost may be slightly higher, but the protection is excellent and guaranteed to perform. Item Reviewed: Signature Series Motor Oils
Best oil on the marketIt's simply great oil made for great engines. Item Reviewed: Signature Series Motor Oils
So not want to useat any other oilHave used for years on my 2000 Chevy Impala, 1995 Toyota corolla, 2010 and 20 12 Toyota Prius, and will be on my 20 17 Rav4 b Item Reviewed: Signature Series Motor Oils
Ow20Oil exceed all expectations. Item Reviewed: Signature Series Motor Oils
Love this productIn my truck Item Reviewed: Signature Series Motor Oils
Great productI use it in my 2014 Chevy Silverado Item Reviewed: Signature Series Motor Oils
Only product I useSince day 1 of the first oil change, and several others, 45K miles later it's still running like a champ. I've been using Amsoil for years. Nothing will change my mind. Item Reviewed: Signature Series Motor Oils
Great all season protection, IMOBeen using this in my DD/cars for the past 10+ years and never any oil issues. Item Reviewed: Signature Series Motor Oils
11 years of the best!I converted my car to Amsoil 11 years ago when I first bought her. She was 4 years old and had 78k miles. Once I changed her to Amsoil, she instantly ran better. Now at 176k miles, she has the cleanest valves any mechanic has seen! I'm proud to be raised on Amsoil Item Reviewed: Signature Series Motor Oils
The BestI use Amsoil Signature Series 5W-30 sinthetic oil in my 2006 Solstice and my 2013 F-150. Amsoil is the Best and wouldn't use anything else. Item Reviewed: Signature Series Motor Oils
I have bought, will continue to buyThis is a great product and I use it in all of my vehicles. The biggest difference is that all my motors run quieter than any other product I have tried including royal purper. Could not be happier. Item Reviewed: Signature Series Motor Oils
Amsoil is the only fluids I use, period!I have 0 complaints about any product that I've used yet. My 06 Silverado and 07 Trailblazer both get Amsoil. 15k Mike changes with 0 issue Item Reviewed: Signature Series Motor Oils
1ST TIME BUYERI HAVE A BRAND NEW 383 STROKER ENGINE IN MY 2004 SILVERADO. IT WAS RECOMMENDED TO PUT A GOOD OIL IN MY ENGINE AFTER THE BREAK IN OIL WAS CHANGED.READ REVIEWS ON SEVERAL DIFFERENT OILS AND REALLY LIKED WHAT I READ ABOUT AMSOIL. WHEN I FIRST GOT MY ORDER IN THE FIRST THING I NOTICED WAS THE BOTTLES WERE MADE DIFFERENT THEN ANYTHING ELSE I EVER USED. THEY WERE THICKER PLASTIC AND ARE POUR FREINDLY. DIDNT NOT HAVE TO WORRY ABOUT SPILLING OIL ON MY NEW ENGINE. Item Reviewed: Signature Series Motor Oils
Best there isBest you can buy. Item Reviewed: Signature Series Motor Oils
My go to oilGreat product Item Reviewed: Signature Series Motor Oils
I WILL buy this product again.AMSOIL is THE ONLY oil and lubrication product I use in everything I own. I would put this up against any other synthetic lubricant any day. Item Reviewed: Signature Series Motor Oils
I Would definitely buy this product again.I have been using this oil in my06 Dodge Ram for years. Makes better oil pressure than other brands. Item Reviewed: Signature Series Motor Oils
Great oilRun, it in all three vehicles that call for 5 w 20wt. Item Reviewed: Signature Series Motor Oils
Quality productI have used Amsiol products in all my vehicles for several years with good results. Item Reviewed: Signature Series Motor Oils
Titan Loves ItSwitched to amsoil and my engine is quieter, and runs better. I tow a lot with my truck and know with amsoil that the oil is breaking down under heavy load. Item Reviewed: Signature Series Motor Oils
Few choicesNot many choices for 5w-50. This is the only real quality option. Thanks for making the wt. Item Reviewed: Signature Series Motor Oils
There is no other oil like AMSOILI own a pickup and two autos, two utility tractors, four chain saws, three weed eaters and eight small engine machines. I have AMSOIL in each and every one. My Pickup is used to pull a large trailer and for snow plowing for several customers. I also use fuel cleaners, fuel preserve products, oil mix and grease gun tubes. I have experienced oil leaking and oil burning motors stop doing both and a one pull start on the small motors.There is no other oil and other products that compare to AMSOIL. Item Reviewed: Signature Series Motor Oils
Long time usesBeen using Amsoil 20 years and have had no problems. Put oil in my Durmax and put the big filter on and did need to change oil only once. Item Reviewed: Signature Series Motor Oils
I will buy this again.I use 0-20 Amsoil in my Family crossover. I run it 15,000 mile between changes and the oil still looks clean when I drain it. Item Reviewed: Signature Series Motor Oils
I will only buy this product from now onThe Signature Series oil is the best and most money-worth-it oil that's available from Amsoil...period! Item Reviewed: Signature Series Motor Oils
Keeps my cars running long and strongMinimizes actual engine wear while managing fuel economy. Yearly oil changes is great. Item Reviewed: Signature Series Motor Oils
I will buy this product again.I put Amsoil 5w - 50 I'm my 2012 Boss 302. Product works great for regular driving or hittting the track. Item Reviewed: Signature Series Motor Oils
Have used this product for over 25 yearsI used this product in my SUV, runs smooth get better mileage and start very well in extremely cold weather. I used their product in all my vehicles and small engines. Item Reviewed: Signature Series Motor Oils
Incredible StuffAmsoil makes a huge difference in the performance and longevity of your vehicle. Nothing else goes into my cars, trucks, lawn mowers, chainsaws, etc. Item Reviewed: Signature Series Motor Oils
I will buy this product many, many more times...great stuff!I've been using AMSOIL motor oil for just over 5 years now and been very satisfied, no complaints...ever! Item Reviewed: Signature Series Motor Oils
Great productI use it in all the engines in my house. My cars, lawn mower, pressure washer and generator. I feel my equipment runs better and more efficient. Item Reviewed: Signature Series Motor Oils
Use it in track car and without any problemsI use this oil in my track car. I have a magnetic plug and nothing has shown up there. The filter is also clean after each use (I check it). Oil pressures are good on track. I plan to use this oil well into the future. Item Reviewed: Signature Series Motor Oils
I would definitely buy this!I run this oil in my 2003 Honda S2000 and I love it. Had my head rebuilt and checked the cylinder walls, cams, etc. with 111k miles on the engine with force induction. There were barely any wear at all! I will always run Amsoil. Item Reviewed: Signature Series Motor Oils
This is the only oil I will use is my Chevy BlazerI use the 5W30 along with the Amsoil oil filter and I run it 15,000 miles before I change the oil. I also use the Amsoil AFT which can keep the transmission temperature up to 60 degrees cooler. Reduce friction and save your equipment Item Reviewed: Signature Series Motor Oils
Been using for yearsI use only Amsoil in all my vehicles--engine, trans, and differential. Best products on the market. Item Reviewed: Signature Series Motor Oils
Will buy againLasts well. Color is still clean after 5k. Gas milage is slightly higher. No oil leaks in a Ford Taurus with 200k. Item Reviewed: Signature Series Motor Oils
Great productGreat oil for direct injection engines Item Reviewed: Signature Series Motor Oils
Been using this for 15 yearsI've been using this since 2003 in my Toyota Solara that has the V6 which is prone to sludge. I now have 470,000 miles on it and still running strong and does not smoke. I change it and the filter about every 10 to 15 thousand miles, sometime longer. Item Reviewed: Signature Series Motor Oils
Great ProductIn work&personal vehicle.Work car approaching 300,000 miles-Starts easy in old weather-improves gas mileage-don't have to change every 3000 miles as you have to with conventional oil-can't think of anything negative Item Reviewed: Signature Series Motor Oils
High Heat Low FrictionI use this oil in a variety of cars and trucks i service. Some of these cars are turbos and some are natural aspiration. No matter the heat load in any of these cars or trucks they seem to have extremely low friction when i inspected during engine rebuilds. Item Reviewed: Signature Series Motor Oils
The Best Oil Ever MadeI buy this oil about once a year for a friends 2004 Lincoln Town Car. He only drives around the city and occasionally to Richmond Virginia. He always gets a 19~20 mpg in the slow city with the ac blasting and on the highway 25~27 mpg. That is a 280 hp 4.6 liter v-8. The engine runs so smooth now its a huge difference from before the use of amsoil. Item Reviewed: Signature Series Motor Oils
YesIn my motocycle Item Reviewed: Signature Series Motor Oils
Simply the bestThe to go motor oil for all 0W-20, 0W-30, 5W-20, 5W-30, 10W-30 applications except europeans. Item Reviewed: Signature Series Motor Oils
My engine is super quiet nowMy engine is really quiet now. That tells me that Amsoil is lubricating the engine in a way that the other oils can't. I changed all the fluids on my 2017 Chevrolet 2500 HD 4x4. Fuel mileage is up and vehicle noise ( engine, transmission, transfer case and differentials ) is down. it truly makes a difference. Item Reviewed: Signature Series Motor Oils
Love this stuffI use Amsoil products in my truck and my wife car. I started using Amsoil products in my race car many years ago and had such good luck with them I have been using them in anything I own with a gasoline engine. My truck has over 200,000 miles on it and it runs like new. We use my wife's car for road trips and I always ride with confidence in Amsoil products. I would definitely recommend Amsoil to family and friends.. Item Reviewed: Signature Series Motor Oils
oilgreat stuff Item Reviewed: Signature Series Motor Oils
I have been buying this product again and againI have been using this product (5w-30 signature series) for sixteen years. A little better gas mileage and I feel the auto is better protected in our high heat that we get during the summers here. Item Reviewed: Signature Series Motor Oils
Very good product and very reasonably pricedWe Transport trailers with our pickup and run only Amsoil in it. Love the extended oil changes, especially since we run so many miles. Because of the ability to run more miles on it, it actually is cheaper to run Amsoil. Wouldn't run anything else! Item Reviewed: Signature Series Motor Oils
Best Product on the MarketBy far the best motor oil I've used! Item Reviewed: Signature Series Motor Oils
Buy nothing but smsoil.Use it in honda crv.Great oil. Long life. Item Reviewed: Signature Series Motor Oils
Engine OilI only trust Amsoil in all of my vehicles. Item Reviewed: Signature Series Motor Oils
Mechanics Amazed at inside of engine during gasket repairA couple of years ago I had my 1998 Chevrolet Silverado in the shop for an intake gasket repair. About mid-day I received a call from the repair shop asking me what kind of oil I ran in the engine. They were amazed as they told me they had never seen an engine so clean inside. I told them I had been running Amsoil in the engine for the past 1.5 years. I had heard of Amsoil for years and talked to a diesel mechanic a few years before and he ran Amsoil in everything he had. I figured if a diesel mechanic ran it in his vehicles, motorcycles, and lawn equipment it was good stuff. I have not been disappointed, I immediately noticed easier cold starts and better gas mileage in my vehicles. With the miles my familiy's vehicles travel, a once a year oil change with the extended life best synthetic oil on the market is a convenient and cost effective solution for ensuring my vehicles engines are protected with great lubrication. And the added bonus of creating less waste for our environment is big for me as well. Convenient online shopping and dependable delivery put my vehicle's lifeblood in my hands within days of ordering it. Love the product and will be using it for years to come. Item Reviewed: Signature Series Motor Oils
i would buy morevery good Item Reviewed: Signature Series Motor Oils
yes i would buy it againits a great oil I have every use in my cars! Item Reviewed: Signature Series Motor Oils
Nothing but the bestI use Amsoil oil for everything I own car pick up motorcycle lawn mowers weed eaters I wouldn't use anything less Item Reviewed: Signature Series Motor Oils
The BestI have tried every synthetic oil over the years.Then I tried Amsoil signature series 5w-20 in my 2017 dodge Ram with the 5.7 hemi.Notice a big difference in smoothness and performance,like pouring a few energy drinks in the engine!!! I change my oil every six months, I wont be close to 25,000 miles but if I go over six months I know the engine will be okay. I have changed my oil with other synthetics that claim they can go 15,000 or one year, I changed mine at 6,500 and it was black and smelled burnt and was already starting to sludge.You won't get that with Amsoil. It cost a little more but it's well worth it !!! If your going to keep your truck or car for a long time Amsoil is the way to go,If you lease every two years don't bother.Give it a try it's THE BEST!!! Item Reviewed: Signature Series Motor Oils
Only oil I useThe day I bought my 2005 F250 4x4 I brought it home and drained the stock oil and refilled with 0W20 amsoil and amsoil oil filter. Since that day my truck has never seen any other oil or filter. My truck is now 13 years old and it runs like the day I bought it. I change my oil once a year no more no less ! ! ! Item Reviewed: Signature Series Motor Oils
Signature series 5W-30 motor oilI have used the Signature series oil for years. I like having the protective properties of the oil with extended change intervals. I have one vehicle with over 225,000 miles runs great and uses zero oil between changes. Item Reviewed: Signature Series Motor Oils
A top oilUse this in my Mustang GT....won't use anything else. Lots of debate as far as what's best but this is my favorite. Item Reviewed: Signature Series Motor Oils
If there was a better lubricant anywhere, I would be use it.I have been an AMSOIL user for many years, and as a mechanical engineer know the value Item Reviewed: Signature Series Motor Oils
Go with the best!AMSOIL is in every engine I own! Item Reviewed: Signature Series Motor Oils
AwesomeSimply the best oil to use. Thank you amsoil Item Reviewed: Signature Series Motor Oils
High qualityLike all signature series it is the best oil I've used. Amsoil is one of the few oil manufacturers that shows testing results. They also sell testing kits. Their oil is top notch. Mobile 1 annual protection is basically a cheaper version of this. ( as it's not as good) if you want the best protection this is it. It also pays for itself as you can run it longer. Item Reviewed: Signature Series Motor Oils
Too good to believe.On January 20,18, I purchased a 2008 Dodge Durango w/ a 5.7, 4x4. It had 89,000 miles on it Item Reviewed: Signature Series Motor Oils
Good OilI run this oil in my 2011 Land Rover LR4 with a 5.0L that requires synthetic oil. I've had this oil tested at the manufacturer's recommended interval of 7500 miles and there was still some life left in it. The next time I went to 9000 miles and had it tested, this time the oil was no longer good, so I'll stick with Land Rover's recommendation. This is with Land Rover's canister oil filter. Amsoil doesn't make a long life filter for it. Item Reviewed: Signature Series Motor Oils
Heck yesBeen using AMS in all my vehicles for 15 years . Have not had any engine oil related problems yet! Item Reviewed: Signature Series Motor Oils
Over 200K and going strong.I have a Toyota Corolla I bought new in 2007. It now has over 200K miles on the odometer. It has had only Amsoil and the only thing I have had to do is normal maintenance and it still gets over 30 mpg. Amsoil is the only oil I use in all my vehicles. Item Reviewed: Signature Series Motor Oils
Best Oil on the planetHad my oil changed at a dealership. They showed me some black sticky that came out of the oil pan. I called AMSOIL with my story and they had me send in a sample and some of the oil that drained. They did a thorough check and found that the oil had not failed in any way, some other contaminant apparently fell in while under warranty gasket replacement. Great company that stands behind their products! Item Reviewed: Signature Series Motor Oils
Many miles!!1993 Cadillac Sedan deVille. 4.9 liter aluminum block engine. 351,136 miles!! Enough said! Item Reviewed: Signature Series Motor Oils
Use nothing but Amsoil in my vehicles.Use at the recommended Amsoil oil change intervals. Never had any engine problems. Item Reviewed: Signature Series Motor Oils
TuffyJust and great oil . Item Reviewed: Signature Series Motor Oils
I would buy this product againI run it and all my vehicles love it Item Reviewed: Signature Series Motor Oils
I will be buying this product as long2008 Lexus Item Reviewed: Signature Series Motor Oils
AMSOIL beats everybody & More MPGI am truly convinced that AMSOIL synthetic oil is the highest quality synthetic oil in the marketplace. I believe in my heart I get more MPG with this Signature Synthetic oil. I have been using it in all my hybrid cars for last decade or so. I love the quality, customer service and want to keep supporting this quality company. Keep up the good work AMSOIL. Item Reviewed: Signature Series Motor Oils
I have switched to this exclusivelyI saw a forum post with some oil test results. Amsoil was at the top of most of them. I switched to this in my 2002 Honda s2000. I'm 1 oil change in and my car hasn't blown up yet plus it burns less oil than with Mobile 1. Item Reviewed: Signature Series Motor Oils
Best I've used.Improves Gas Mileage. Item Reviewed: Signature Series Motor Oils
Best oil for a hemiI have a 2007 Dodge power wagon with the 5.7 hemi. I work this truck hard, and this is the only oil that cures the notorious hemi tick even with 130000 plus miles and oil changes every 15000 miles. Well worth it if you love your truck. Item Reviewed: Signature Series Motor Oils
Love the productsA little pricey but peace of mind knowing that you have put the best you can buy into a truck that costs a bunch ! As crazy as I know this sounds I went from 13.1 mpg to 15 mpg only changed the oil . Is that even possible??? Item Reviewed: Signature Series Motor Oils
AwesomeI have nothing but good to write about this oil. I change my oil once a year, and change the oil filter twice a year, every 6 months, however. That's based on my driving and may not be on your driving habits. I would follow what Amsoil recommends when using their oil. Other than that my mechanic comments how great my car runs, because my last car I put on 250,000 miles without a major breakdown. I highly recommend Amsoil products. Item Reviewed: Signature Series Motor Oils
OilExcellent product. Bike runs cooler and smoother Item Reviewed: Signature Series Motor Oils
Needed the best protectionJust bought a 2018 Jeep Wrangler and wanted the best protection .... The same I had using Amsoil on my 1994 GMC 350k miles and 2003 GMC 230k.. Item Reviewed: Signature Series Motor Oils
OilI buy Amsoil because it has always worked for me. I have over 200K on my 97 Jeep, and the last 3 of my wife's vehicles went over 200K, one went to 286K before I traded it off. Item Reviewed: Signature Series Motor Oils
smooth as silkrun it in my wife's CRV. I don't trust the Honda oils as they sludge out when converting to AMSOIL. Thankfully this is a new car, so I won't have this issue. A clean motor is a happy motor! Item Reviewed: Signature Series Motor Oils
Overall happyI am more than willing to pay a bit more than the rest to have significantly better oil protection. Read the independent reports, Amsoil is bar none the top dog. Item Reviewed: Signature Series Motor Oils
OwnerI've retired 2 Ford E-350 vans, gasoline engines, both with 520,000 plus miles. I'm currently driving a third one, with 524,000. Item Reviewed: Signature Series Motor Oils
Only oil I useChange oil every 10,000 to 12,000 miles. I know it would go longer, but I know for sure my bike is ready for any demand I ask of it. Item Reviewed: Signature Series Motor Oils
I would buy this product again, and I have.I love this product. I have not had any issues with my vehicles since switching over. Item Reviewed: Signature Series Motor Oils
My go to oilNever lets me down and keeps my car running like a top. Black stone lab reports always come back good viscosity turns out little thin after 5500 miles. Item Reviewed: Signature Series Motor Oils
AMSOIL productsMy 1998 Chevy 4.3 truck has 350000km right from new I have used AMSOIL products bumper to bumper and never touched the motor or transmission. Even in cold weather at -25 Celsius not plug in it will start every time.I have been using AMSOIL products for 35 years and I am not about to stop. Item Reviewed: Signature Series Motor Oils
I will definitely buy this product again!!I use the 5w30 signature oil in my 2012 Chevy Sonic that I use for business. I use the car to deliver auto parts as an independent contractor. It presently has 339,000 miles on it and going strong!! Item Reviewed: Signature Series Motor Oils
I would buy thia product againIt good oil and keep engine running for life Item Reviewed: Signature Series Motor Oils
Great oil!Amsoil makes one of the best if not THE best oil out there. You get great longevity out of their products, especially the signature series. I've been using that oil for a few years now and I noticed a slight increase in mileage and engine smoothness in my Accord. I just bought a new car and when the free oil changes(2 or 3) are up I'll be using Amsoil for sure. Item Reviewed: Signature Series Motor Oils
Only oil I will buyAmsoil is the schit hands down the best in synthetics Item Reviewed: Signature Series Motor Oils
Amsoil syntheticI have uses Amsoil for 8 years now. I go 20,000 between changes and 10,000 for a filter change in between. Never burn oil and I get constant steady power and great milage. Im convinced it the best oil on tge market...period! Item Reviewed: Signature Series Motor Oils
Good stuffI have been using Amsoil products for over 25 years, and now put it in my kids cars. Living in a place where dirt and heat are common place Amsoil has preformed above and beyond any other products I have ever used. With the cost of new vehicles I cannot think of a better product to extend the life of a vehicle. Goods stuff. Item Reviewed: Signature Series Motor Oils
Only oil I can review at the timeGreat oil, I normally use Mobil 1 and am trying Amsoil oils. I believe they are worth it. I still think they are expensive but they seem to last. No difference in performcance(like more MPGS) but I have noticed the signature series oil lasts more time without changing color like old/worn out oil. Item Reviewed: Signature Series Motor Oils
Best performance oil on the marketUsed in my SC, 2014 Ford Raptor. Longer oil change interval if required. Dependability during the most demanding conditions. Item Reviewed: Signature Series Motor Oils
Great product love Amsoil products!!!So far oil seems to be holding up well,never had any issues with Amsoil products. Item Reviewed: Signature Series Motor Oils
I will alway use this and other Amsoil product.Amsoil allows more time between oil changes with a filter replacement at 5000 miles. Item Reviewed: Signature Series Motor Oils
I would buy this product again.Switched to using Amsoil and noticed a difference immediately at how quiet the engine sounded. I also noticed a bump in fuel mileage. Item Reviewed: Signature Series Motor Oils
Good productUse this in 2 cars & 1 truck have over 105000 miles on Pt Cruiser, engine is quiet, & doesn't burn oil. Item Reviewed: Signature Series Motor Oils
I highly recommend this product.2006 Toyota Corolla. 250k miles with only 10 oil changes. The engine still going without any issues. Now I use it on my 07 Fj cruiser and my 15 Toyota Corolla. Item Reviewed: Signature Series Motor Oils
Great results!I have used Sig series 5W30 for the last 100000 miles on my 2003 Lexus es.Just had valve cover gaskets replaced.Tech said engine looked like new inside with valve covers removed.. Item Reviewed: Signature Series Motor Oils
I will buy this product againMy vehicle runs great Item Reviewed: Signature Series Motor Oils
AMSOIL 0w20 and AMSOIL 5W20 synthetic motor oils.I have been using AMSOIL Synthetic oils in my vehicles for over 10 years. Two Saturns (a 2000 SL2 & a 2002 SC2), Two Hyundai Elantras (2014 & 2017), and a GM Sonic (2015) . I have never had an oil related problem with any of the engines. There was significant affect on the LACK or wear on all of the engines I would recommend AMSOIL them to anyone who purchases a new car, or a used car with not many miles on it. Item Reviewed: Signature Series Motor Oils
Have used Amsoil products for over 30 Years.Used Amsoil OW-20 oil in the last two Hondas I've owned and currently in my 2017 Honda Civic turbo. Aside from the fact that Honda makes a very durable Vehicle the use of Amsoil OW-20 has without question lengthened the lifespan of my vehicles. I put close to 200,000 miles on the previous Honda's I owned and expect with normal maintenance to do the same or even better with my current Honda. Item Reviewed: Signature Series Motor Oils
I have been using this product for many yearsWouldn't think about any other product for my 2007 Silverado that has 223,000 miles on it. I started using it back when i purchased my first new 2000 Silverado and have used it ever since. Item Reviewed: Signature Series Motor Oils
No plans to changeI have been running Signature Series Synthetic Motor Oil in my 2010 FJ Cruiser (4.0 V-6) since it was new. The vehicle now has 146,000 miles on it. I drive 140 miles per day for work, towing a small boat for part of the commute. I consider the use of my vehicle pretty strenuous considering 1000 plus feet of elevation change, temps from 0 degrees to 105, all on horrible highways from the desert to the mountains, including a little off road crawling. I grew up around garages and race cars and do my own maintenance / oil changes and am always impressed with how good the oil looks when I drain it, even after max mileage intervals. I have had zero mechanical issues and get the same fuel mileage as when the truck was new. The one time I had a shop change my oil due to time constraints and other service, the mechanic commented the used oil looked and felt fantastic still, at 12,000 miles. Item Reviewed: Signature Series Motor Oils
I would buy this againAwesome oil. Makes my Cecile run smoother and quieter. I love Amsoil. Item Reviewed: Signature Series Motor Oils
I WOULD DEFINETLY BY THIS PRODUCT AGAINIn my 19 year old truck with 257000 miles, the performance improvement is noticeable. Item Reviewed: Signature Series Motor Oils
Really wonderful oilStarted using the Signature Oils last year. I can tell the difference from regular synthetic oil. In the long run it's probably less expensive to use the Signature because of more then double the change interval. Item Reviewed: Signature Series Motor Oils
Good stuffYou can't beat Amsoil, and at the price when you become a preferred member, the price is as good or better than most other oils. Item Reviewed: Signature Series Motor Oils
One of the best I have ever usedAmsoil products are constantly the highest quality and the best protection for all my vehicles. It has revived and made my daily driver (over 20 year old vehicle) run like a top. It is the prefect addition to any vehicle that you want to get long use out of, and regardless of the environment have the best protection for your engine. Item Reviewed: Signature Series Motor Oils
Started using it......will never stop!!! Whatever I drive!!!Always heard about it in the past, but never tried it. Finally tried it and will always use it!!! Item Reviewed: Signature Series Motor Oils
Best OilI've been using Amsoil in all my cars (6) for over 10 years. My 07 Honda Fit just turned 400k miles and is going strong, along with all my other cars running Amsoil. And I save money by only having to change the oil every 15k miles. Excellent product that actually saves me money in the long run. Item Reviewed: Signature Series Motor Oils
Love this stuff!!!I drive 150 miles daily and amsoil helps my engine run smooth and cool.. Even when I'm due to change it feels like oil not syrup... Great price for a great product.. would buy amsoil again and again.. Thanks amsoil Item Reviewed: Signature Series Motor Oils
5/50 Signature OIlHave previously trid various oils in my 2012 Boss 302 & Amsoil 5/50 is been my choice since it came out .Great Stuff'''''' Item Reviewed: Signature Series Motor Oils
Signature 5-30 and 5-20 and 100:1 2 cycle oilI installed 5-30 Sig in my Tahoe last May. Through this May I completed 10,000 miles including through a winter here in Northern Michigan. The shop I use was touting another oil and warned me that no oil could be used all winter in multiple cold or very cold start conditions and last through the whole winter. Well, I had the oil tested after a year and even in this harsh environment, the oil still had 3,000 to 5,000 miles of life left. Kudos to the product. Yes the Tahoe does use some oil--maybe 3 quarts total over that period, but it did amaze me that the oil held up and was still good after a year. Fuel economy on a road trip to Rochester, MN with a change of trans fluid to Amsoil synthetic showed an increase in mileage from about 19 to a solid 21-22 MPG. Fluids are the only change and this vehicle is otherwise a gas hog. Item Reviewed: Signature Series Motor Oils
Use it believe in itI have used this product for over 20 years. I have actually torn down an engine (oil pump shaft broke) that I used this oil in close to its whole life and the internals of the engine were remarkable. They showed very little wear and tear and none of the typical deposits you would see in an engine with 135,000 miles on. I know there is a lot of churn about who's best and so on but speaking for this oil it's worth every penny. Your buying peace of mind. Item Reviewed: Signature Series Motor Oils
YesGood product Item Reviewed: Signature Series Motor Oils
I will be buying this product againI have recently changed to this after considerable research, Item Reviewed: Signature Series Motor Oils
I am not going to stop using this productSince I start using Amsoil signature zero 20 100% synthetic oil on my truck start ups Are much quicker and Engine runs more smoother and more power.My gas mileage has improved significantly Item Reviewed: Signature Series Motor Oils
Great productStart using AMS oil 10 years ago. After 250,000 miles car is still running great. Item Reviewed: Signature Series Motor Oils
ReputationLots of confidence Item Reviewed: Signature Series Motor Oils
I would buy this product againThis Product saves money. It gives you great protection for your engine over a longer period of time, so you do not have to change it as often.When used with the Amsoil Ea Oil filter, it does even a better job. So in the long run it is more economical to use. Item Reviewed: Signature Series Motor Oils
Long intervalsAs I have gotten older I like how I now only have to change the oil only once a year. I take care of 6 cars (mine and my kids) so this really helps me do other things besides changing oil. Item Reviewed: Signature Series Motor Oils
I would buy this againLong life offered Item Reviewed: Signature Series Motor Oils
The only oil I use.Been using Amsoil for years with awesome success. I always use their oil filters as well. Item Reviewed: Signature Series Motor Oils
We are extremely happy with AmsoilWe love the oil , filters and grease. Currently we have just over 411,000 miles on our 2004 Honda Element. Thanks for providing such a high quality lubricant. Item Reviewed: Signature Series Motor Oils
Excellent ProductI use this product in my vehicles that specify 0W-20. Since switching, the engines are much quieter and seem to run cooler. Item Reviewed: Signature Series Motor Oils
Still going strongI've been using Amsoil Signature Series in my 2010 Toyota truck exclusively. Eight years later and 200,000 km later it still runs like new. I wouldn't think of using anything else. Item Reviewed: Signature Series Motor Oils
Cured Generator Oil ConsumptionGreat for my new air-cooled Generac 11kW automatic backup generator. It was consuming another well-known brand of synthetic 5w-30EP oil at an unacceptably excessive rate. After researching the various oil properties and what others with air-cooled generators down in hurricane country use, I decided to try Amsoil 5w-50. After switching my oil consumption completely stopped. I use it or Amsoil 0W-40 in all my small engines now. Item Reviewed: Signature Series Motor Oils
I would buy this product againAmazing product so good im happy i made the right Choice Item Reviewed: Signature Series Motor Oils
I would buy this againI started using this about a year ago and now have in my two motorcycles, my fiancés bike and a couple of friends. Item Reviewed: Signature Series Motor Oils
I will purchase againThe Amsoil Products not only protect my vehichle to the highest standards,they save me time and money. Item Reviewed: Signature Series Motor Oils
Great Product and ServiceWe have used Amsoil products in all of our vehicles for the past 8 years. The engine in our 2010 Equinox is still running strong with 155,000 Amsoil miles. We have used the Signature Series 5W-30 for the past 75 of so and even with the high mileage we lose almost no oil between changes. We do change at about 12K to 15K though due to the heat in the summers of central Virginia. Item Reviewed: Signature Series Motor Oils
I would buy this over and over again.I use this in all for vehicles I own for the last 20 years. My V10 Motor Home, my Hemi SUV, my V-6 convertible beach cruiser and my classic convertible street rod. Extremely versatile and has never let me down. Item Reviewed: Signature Series Motor Oils
Top oil, over every other on the market.I've been using amsoil 35 years, I believe it's what gave me 450000 miles on on a 77 Porsche. Today I used it in my 18 Kia soul turbo and 16 Kia turbo koup, read the specs it's the best oil for any application. Item Reviewed: Signature Series Motor Oils
OILThis is the only oil I use in all of my vehicles. Item Reviewed: Signature Series Motor Oils
Amsoil is good stuff!My engine has 245,000 miles on it, (second engine in the car) and I have used Amsoil for about 2 years. I recently had an oil analysis by Blackstone Labs, and they told me that the wear I had represented about 5,800 miles, but I had actually 22,600 miles on that oil change!! I could have run until 25,000 miles, so next time I will. Item Reviewed: Signature Series Motor Oils
Only oil period.Use this in my 2017 Kia 3.3 and like that I save money with my longer oil change interval. Item Reviewed: Signature Series Motor Oils
My F150 and Highlander both run with Amsoil SignatureMy vehicles never run better. I like the convenience of changing my oil once a year. Item Reviewed: Signature Series Motor Oils
Best oilI have been in the automotive industry for 45 years and have seen all kinds of oil and lubricants. Many claim amazing things. My personal experience with Amsoil has been long term. First my race bike. Nothing compared to the performance of Amsoil. Runs cooler, lasts longer, overall good results. My truck now has 343000 miles. Still does not use any oil. My Harley picked up 3 miles/gallon and runs cooler. Item Reviewed: Signature Series Motor Oils
Gets the job doneGreat product Item Reviewed: Signature Series Motor Oils
Love AmsoilAmsoil is the only well we use in our cars. Are even got my family and some of my friends to switch Item Reviewed: Signature Series Motor Oils
Long time userGreat oil Item Reviewed: Signature Series Motor Oils
Great Stuff. Highly Recommended. Awesome performanceHere in Edmonton, Alberta. We've got crazy And confusing weather. The cold gets up to -50 So this Oil does Absolutely great performance. You've gotta have this in coldest weather. Item Reviewed: Signature Series Motor Oils
Will continue to be a customerJust recently changed my C6 Corvette to Amsoil. Looking for cooler operating temps and the reduction of lifter noise on cold starts. Took a 200 mile trip ran about the same temps as my previous synthetic oil. Engine seems a little quieter with cold starts. The cruising season is just getting started her in Ohio. The true test will be when I track the car at some of our clubs autocross races and high speed events. Two other friends have witnessed improvements with this product and switched based on their recommendations. They both race frequently and push their Vettes to the limit without any issues. Item Reviewed: Signature Series Motor Oils
delivery serviceseems to be working good. I put a 100,000 miles a year on. does not keep engine as clean as redline. lots of varnish from amsoil at the 100,000 mile mark. redline at a 100,000 looks just like knew inside the engine. Item Reviewed: Signature Series Motor Oils
YesI started using this oil many years ago. When first bought it I used your oil filter and oil I put in my Ford 150 pickup truck 2002. I left in my truck for 6 weeks and drained the OIl and put in new filter and oil this cleaned the inside of my motor now the oil stays very clean. I now have over 363,000 miles on my truck still running strong Item Reviewed: Signature Series Motor Oils
again and againAmsoil oil is amazing. You are the best. Item Reviewed: Signature Series Motor Oils
Shmoov...I use in a 1999 Acura CL/3.0 coupe...starteed @ 40,000, and have used for last 180,000...car has 220,000, and runs as shmooov as any vehicle out there....@ 185,000, I changed the transmission fluid, using AMSOIL transmission fluid...aGain.....shmoove shifting....Best product for any vehicle! Item Reviewed: Signature Series Motor Oils
I have only ever used this in my truck.Best synthetic on the market. It's the only thing I use in my truck. Item Reviewed: Signature Series Motor Oils
Great oil as always.As always, AMSOil didn't disappoint. Ordered this for my mom's 2016 Honda Accord. Item Reviewed: Signature Series Motor Oils
It's amazing oilSuper impressed with all The Amsoil products. Extebdes oil change intervals makes it a no-brainer. Item Reviewed: Signature Series Motor Oils
I would buy againUse for my car Item Reviewed: Signature Series Motor Oils
I run this oil in all engines I own..I always say that if Amsoil don't know how to make Synthetic Oil NO ONE does.. Item Reviewed: Signature Series Motor Oils
1999 z71 truck300000 miles with once a year oil change. Amsol is the best Item Reviewed: Signature Series Motor Oils
...Great products Item Reviewed: Signature Series Motor Oils
Very good product!I use Amsoil in everything machine I own. That Amounts to one diesel pickup to three gas pic up and two mustangs one being a 2011 Shelby GT500 Item Reviewed: Signature Series Motor Oils
Best product ever for use in your carAmsoil protect my crankshaft when my oil pump failed and I get better gas milage, epa rating for my car is 35 mpg and I repeatedly hit 40 mpg. Item Reviewed: Signature Series Motor Oils
Good Stuff...period2010 Toyota sequioa w/ 200k on the clock. Item Reviewed: Signature Series Motor Oils
Great OilThe best oil I've ever used.! Hands down! Item Reviewed: Signature Series Motor Oils
5w20 signature oil2013 Kia Rio o my has a 3.5 qt capacity. Best oil I've seen for this scenario Item Reviewed: Signature Series Motor Oils
Love AmsoilOnly Oil I will every use on my high performance cars Item Reviewed: Signature Series Motor Oils
I would definitely buy again.Used for engines and trans. I researched oil products IE: Royal Purple, Mobil 1, and Amsoil. Amsoil won. Item Reviewed: Signature Series Motor Oils
YesOn thanks Item Reviewed: Signature Series Motor Oils
Subaru calls for this Wt oilMy new Outback calls for 0-20 oil. This is a difficult thing to believe in considering I am old sckool and would rather have a heavier oil in the motor. Item Reviewed: Signature Series Motor Oils
My new favorite oil!My 302 race engine loves it! My old oil would barely last 1,500 miles but signature series is still golden after 5k! Thinging about swithing everything i have to it and see how a stock engine does up to 15,000! Item Reviewed: Signature Series Motor Oils
The only oil I will use.The best oil I have ever used and I tell everyone I know. Item Reviewed: Signature Series Motor Oils
That's the one for my carFor the long mileage & city Item Reviewed: Signature Series Motor Oils
This oil is some awesome stuff.Unlike other oils I have tried in the past this stuff seems to work very well in my 5.3 liter vortex, she runs much quieter and cooler then before, I was a big a mobile 1 user before trying the amsoil and I've been using it ever since. Item Reviewed: Signature Series Motor Oils
Good for another yearI bought SS 5W-30 and a 15K filter for less than 4 oil changes Item Reviewed: Signature Series Motor Oils
Simply the best stuff everAmazing products. Will not run anything else in my vehicles, atvs, snowmobiles. Item Reviewed: Signature Series Motor Oils
BillVWhen changing oil in a turbo engine the new formula Amsoil Signature series is a no-brainer!! Item Reviewed: Signature Series Motor Oils
Best EVER!! BAR NONEI was introduced to AMSOIL in 1989 and ever since then it's all I use. I've had dealerships and Auto parts houses try to sell me Royal Purple and Penzoil and Mobil One and I stop them before they even get going good. And I tell them, "Sorry that you like trashy oil in your prized possessions but as for me I only run the best, and that's Amsoil. It's been around since the 60's and it's never failed. So, why not use something that stands the test of TIME!!? That's why I use it, I "Know" it won't fail." Item Reviewed: Signature Series Motor Oils
using amsoil for over 20 years.Run it in every vehicle I own and my kids. Best product on the market Item Reviewed: Signature Series Motor Oils
AMS oil signature 10W-30Product is terrific. Improved engine idling & gas mileage. Good engine wear too! Shooting for 300k & beyond! Item Reviewed: Signature Series Motor Oils
So far so goodTime in between changes Item Reviewed: Signature Series Motor Oils
Great stuff !!!!!! I only use amsoilWorks great lasts a long time !!!! Over priced though Item Reviewed: Signature Series Motor Oils
I won't use any other oilWe have a 2016 Honda Pilot and a 2014 Jeep Gtand Cherokee. The Pilot gets 28 mpg and the Jeep gets 24. I truelly believe it's because of AMSOIL. When we picked up my wife's Pilot from the dealer I told her that within 30 days i'll have it running so smooth that she won't know that it's running. She gave me the bonehead look. Long story short, both vehicles run as smooth as silk and the mpg's are higher since AMSOIL. Not long ago i got into her truck and i didn't know it was running. I asked her if she was going to start the truck before we leave for our trip. That's basically how the story goes for all of our cars; lawn equipment and anything that uses oil. It's the best you can get. Item Reviewed: Signature Series Motor Oils
YesMy vehicles definitely feels it has more performance. Item Reviewed: Signature Series Motor Oils
Amsoil 5w30Use in my Toyota Tundra since new 2006! 270,000 mi. Great protection, runs well & very consistent! Item Reviewed: Signature Series Motor Oils
Excellant oil.Use it in my 2000 Honda civic SI with 220000 miles on it. Still runs like a champ. Item Reviewed: Signature Series Motor Oils
Mmmmm goooIt's the best Item Reviewed: Signature Series Motor Oils
Great productBest synthetic oil in the world it's the best and only oil we use. Item Reviewed: Signature Series Motor Oils
Great ProductThis product is awesome, since I do not put many miles on my vehicles, with getting a Demo from work, it is nice to only have to change the oil in all of my vehicles once a year and know that it comes out as clean as new when I drain it! Superior product and highly recommend! Item Reviewed: Signature Series Motor Oils
Signature Series 5w-40Great oil, change it once a year. Been buying Amsoil since 1980, first as just a customer and then as preferred. I use only Amsoil oils, gear oils in tractor, small engines. Item Reviewed: Signature Series Motor Oils
5w-30Awesome oil! After changing the oil in my wife traverse to Amsoil everything has been running smoother. The only down side is sometimes my wife will start the car waiting for me to leave the house, I'll get in the car and try and crank it again because I cant hear the engine running it's so quiet now. Item Reviewed: Signature Series Motor Oils
I've been with AMSOIL since 1988I use it in my 2 wheel drive 4Runner and have 273,000 miles on the car all with AMSOIL. Item Reviewed: Signature Series Motor Oils
Awesome oilAmazing oil for the Toyota FJ. FJ ran better and oil at change interval didn't seem as dark. Item Reviewed: Signature Series Motor Oils
I buy this product every yearHave been using in my last 3 vehicles Item Reviewed: Signature Series Motor Oils
Even better than I thoughtWorks as designed; and extends oil changes intervals Item Reviewed: Signature Series Motor Oils
Worked as designedGain in mpg and more miles/time before maintenance intervals Item Reviewed: Signature Series Motor Oils
Get the quality your $$$ deserves AmsoilI just changed the oil in both my rides and loves the quiet smooth sound when running my signature series. Item Reviewed: Signature Series Motor Oils
I will not consider any other synthetic than the BEST.I started using amzoil products before being called amsoil. I use the signature series oil and Eo and Eat filters. I change my oil once/yr. And I literally do not burn any oil in that yr. With my 00' tundra V8 using amsoil. My 02 Item Reviewed: Signature Series Motor Oils
Run with this oil for 30 plus yearsNothing on the market that beats it Item Reviewed: Signature Series Motor Oils
I will buy this product again and againThis is the only kind of oil that I will use in my vehicles Item Reviewed: Signature Series Motor Oils
I would buy this product and use it in every car I ownI own 2003 s2000 that I recently rebuilt the cylinder head on. Prior to the rebuild the car was turboed for a decent amount of time. The car currently sits around 112k miles at the moment after the rebuild. The car has been running Amsoil signature series for most of its life. When I inspected the camshaft, cylinder walls, etc during the rebuild the car showed absolutely no sign of wear anywhere and this is after being turboed and ran hard for a decent amount of time. I moved back to 10w30 signature series after the rebuild but still great stuff. Item Reviewed: Signature Series Motor Oils
ONLY Amsoil!I've taken several engines apart but only engines that have run Amsoil and they only need coolant system work. Conventional oil precipitates out garbage and sludges up engines resulting in CLOGGED oil passages. If your switching from conventional, get the best protection you can get that has tons of positive history. Do your homework/research to understand ALL the costs involved. You will determine Amsoil is the best switch you can make for your vehicles. Item Reviewed: Signature Series Motor Oils
A Trusted ProductI have been using Amsoil products in my vehicles and motorized equipment for many years and relay on its quality. As a "gearhead", I know how important using quality motor oils and greases are to machinery. They are my first choice for lubrication fluids. Item Reviewed: Signature Series Motor Oils
Only the BEST Oils for my vehiclesI only use American AMSOIL in all my vehicles. For this one, I use it in my 2005 Honda Fit 1500cc.. Item Reviewed: Signature Series Motor Oils
Only AmericanI only use American AMSOIL in all my vehicles. For this one, I use it in my 2016 Nissan Caravan NV350. Item Reviewed: Signature Series Motor Oils
Great productI run Amsoil oil and filter in my Yukon Denali 15,000 miles between changes. Just reset the change oil message at 7500. Doing this for years with several GMC Yukon's. At 250,000 plus miles no oil burn at all. Very impressed with not having to go under the car twice as much. Item Reviewed: Signature Series Motor Oils
Best oil you can buyAwesome cold start protection, and anti-wear lube, simply the best Item Reviewed: Signature Series Motor Oils
Buy againSo far all is good. Item Reviewed: Signature Series Motor Oils
I will buy this product again.Why is it when I change my oil does my mileage drop by 2mpg. For the first 400 miles 1 1/2 to 2 mpg less then it creeps back up. Item Reviewed: Signature Series Motor Oils
Great productsI have relied on Amsoil products for years to protect my engines and it has done exactly that. Item Reviewed: Signature Series Motor Oils
Why change?I started using AMSoil in the mid 80s while in Alaska. Cold extreme make lubrication very critical. At minus 40, most petroleum lubes won't even drip off the dip stick and when started cold you can hear every bearing in the engine as there is little or no lube flowing. No so with my AMSoil. Item Reviewed: Signature Series Motor Oils
Not worth it.I've been running 5W30 Signature Series in my 2002 Tacoma since putting it on the road in 2016 with 116,000 miles on the engine. I have since had Oil Analyzers (Amsoil, Inc.) test three samples from the truck so far, and have yet to have the oil last more than 13K miles before being told it's time for it to be changed. So much for the 25,000 miles/1 year claim... Item Reviewed: Signature Series Motor Oils
This stuff is THE BEST!I have 2 vehicles that have had this oil in them (changed every 15,000mi) since I bought them new. They both have mileage approaching 250,000, and they run like BRAND NEW. My newest vehicle is a 2017 Subie Forester Turbo so it gets Signature 5W-30 every 10,000 miles, and I'm sure it will see 200k and beyond. Item Reviewed: Signature Series Motor Oils
Great product, well worth the moneyLove the extended oil change intervals and my fuel mileage increased slightly, which leads me to believe it must be lubricating everything very well. Item Reviewed: Signature Series Motor Oils
This is the only oil I will put in my engineIt's great year round hot or cold Item Reviewed: Signature Series Motor Oils
Will Always use AmsoilSeveral years ago I switched to Amsoil in my GMC Yukon. I was very impressed with what the Signature Series 5w-30 Motor Oil looked like after the first oil change. With all the oils and products that Amsoil offers, I have since switched everything I own over to Amsoil. Even my lawnmowers. Item Reviewed: Signature Series Motor Oils
I can recommend this productUsed in my F150 exclusively. Excellent oil & filter. Item Reviewed: Signature Series Motor Oils
Great product!I have used Amsoil for 30 years and wouldn't think of using any other oil. Item Reviewed: Signature Series Motor Oils
YesLove that you don't have to change oil as offer as regular oil. Is is a little high. Hey but you get what you pay for. Item Reviewed: Signature Series Motor Oils
Good stuffI use Amsoil exclusively Item Reviewed: Signature Series Motor Oils
The best synthetic oil#1 for 3.5L ecoboost Item Reviewed: Signature Series Motor Oils
This is the only oil I run in my Silverado Cobalt, and GTOI like being about to change oil at any time between 5-10k and not have to worry about weather or not the oil is doing it job !!! Item Reviewed: Signature Series Motor Oils
Amsoil always works!I have been using Amsoil for over 15 years and have never had a problem, it's a well proven product that I trust in all of my cars for work and for pleasure. I will will continue to use Amsoil and benefit from it's proven results! I own a Livery/Limo Service and I drive about 40-50K miles a year on various cars and I believe Amsoil is the best Oil for all of my vehicles. With the long 15k Mile change intervals it is a money saving gem and your engine benefits 100%. I recommend there products highly! Item Reviewed: Signature Series Motor Oils
SIGNATURE SERIES SYNTHETIC MOTOR OILI've used this brand and series in my Dodge Ram 4.7 v-8 since I acquired it at 90,000 miles. I've driven another 70,000 miles since and the engine is stronger than it's ever been! I expect to drive this truck until at least 300K miles because of the Amsoil Signagture Series Synthetic brand motor oil. I won't use anything else! Item Reviewed: Signature Series Motor Oils
Great StuffI use Amsoil on my SUV and love it! Item Reviewed: Signature Series Motor Oils
Great OilI use ansoil on all of my trucks, motorcycles, ATVs. This oil I use on 2017 Hemi 2500. It cannot be beat. Item Reviewed: Signature Series Motor Oils
I love itInstant satisfaction, after the first start up i could already hear and feel things running smoother. Item Reviewed: Signature Series Motor Oils
Great OilThis is the best oil money can buy in my opinion. I use this in all my vehicles and have for the last 12 years. Love only having to change the oil once a year. I highly recommend this product. Item Reviewed: Signature Series Motor Oils
Best line out thereBestboil products on the market by far. I run it in all my vehicles Item Reviewed: Signature Series Motor Oils
No issuesI have used Amsoil products for many years in all of my vehicles and small engines. I have never had an issues. I recommend Amsoil even though it is not the cheapest but the delivery is very prompt. Item Reviewed: Signature Series Motor Oils
Does what it promises.Not sure about the oW-20 weight here in Florida, but that is what Honda calls for. Item Reviewed: Signature Series Motor Oils
Good productAlways met my expectations. Item Reviewed: Signature Series Motor Oils
Excellent products.Using Amsoil in all of my family's cars. Using Signature series in cars that drive over 12,000 miles per year, and XL series in cars that drive less than 12,000 miles. Item Reviewed: Signature Series Motor Oils
I would definitely buy this product againGreat product gives better fuel mileage and cleaner oil after changes Item Reviewed: Signature Series Motor Oils
The Best There IsI've been using Amsoil since the 1980s in everything with an engine. And have bragged about it's benefits to anyone who'd listen. Item Reviewed: Signature Series Motor Oils
Increase mileageI get better mileage with Amsoil Item Reviewed: Signature Series Motor Oils
Great resultsMy 2004 Silverado (5.3L V8) has had a steady diet of Amsoil since its second oil change. I have stuck to the 10,000 mile interval, using Amsoil Ea filters & Signature Oil. She's about to roll over the 200,000 mile mark, and I have had no engine issues. I use Amsoil Signature Synthetic Oil in all of my vehicles, and plan on keeping it that way. Item Reviewed: Signature Series Motor Oils
great in the cityI'm city driving in a 4x4 Ford van and after my last oil change the oil was still in great condition after 15,000 miles. just used the cleaning solution so lets see how this improves engine longevity. really happy with all th products I have received. Item Reviewed: Signature Series Motor Oils
The Only Oil I TrustI use Amsoil Signature Series in both of my cars that are susceptible to burning oil. The 10W30 goes into my Honda S2000 and works great! Amsoil is the only oil I use in my motors and gearboxes, after trying out several different brands, I have found their quality to be of the best. Item Reviewed: Signature Series Motor Oils
Top NotchI use it in my Subie Forester and my silverado 1500. no problems ever! Item Reviewed: Signature Series Motor Oils
Best stuff on the marketYeah like to 25,000 my old changed Item Reviewed: Signature Series Motor Oils
10K Oil ChangesI will never use conventional again. 10K mile Oil changes, or once a year. You cant beat the quality and value of this product. No dealer or mechanic can ever persuade my to change every 3k miles again!. Get you some! Item Reviewed: Signature Series Motor Oils
Improved MPGBought Amsoil for all of my cars so I wouldn't have to change the oil so frequently and for the protection it gives all of the internal moving parts. I've noticed an increase in MPG and smoothness when I drive. Item Reviewed: Signature Series Motor Oils
Very good turbo oil!Hold up to heat and high horsepower well withought having a high viscosity in cold weather! Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
Amazing product.Amsoil is a superior product. I use it on all my vehicles and every time I convert a vehicle to amsoil it always runs smoother then it was prior to the swap. Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
Top shelf productI use this oil in my 1.6L off road car here in the Arizona heat. It runs quieter and smoother than anything I've used. In these severe conditions it excels beyond my expectations. Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
The only oil I useI use Amsoil on all my vehicles and equipment Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
One stop shop for a perfect productThe new formula is working out very well in our ecoboost applications. Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
Keeps my '99 Lumina's engine running like new!Drive 1 hour Clermont to Orlando back and forth every weekday. Already 300,000 miles. My car responds like a new car. Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
I would definitely buy this product againUse in competition ski boat 60-120 degrees . Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
best oil out therei run this in my track pack 2014 mustang GT with a Paxton supercharger , the car makes 740whp and the oil lasts well over 12,000 miles and i dint tack it easy on this car , i drive it very hard and the oil really protects my 5.0 even at this power level . only oil i will use from now on !! Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
I would recommend this product againI have a friend that use it for his Ford Mustang Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
5w-50Simply the best oil on the market. Only oil I use on my 2014 GT 500 with over 1k rwhp Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
Nothing else in my baby!AMSOIL formulated this oil specifically for my Ford Coyote V8 engine, why would I use anything else? My vehicle is heavily modified for performance, I need the highest performing motor oil available and from the research I have made on my own that oil is AMSOIL. I am an engineer by profession, I want things to be precise and exacting, that's what I get with AMSOIL. Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
Great productsGreat product used it in a very high mileage vehicle haven't had any issues Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
Best oil availableI use this in my gt500. I push the car hard knowing Signature Series has got me covered. Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
love this stuffalways recommend this stuff Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
Best syn oil out there my boss mustang runs greatCar runs strong and smooth Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
I would buy this product againUse it on my 1995 Chevrolet Camaro z28 Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
Always Amsoil!Wouldn't use anything else in my new Focus RS! I run Amsoil in all my toys! Cars, Ducati's, and waverunner! Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
I will buy this product againI use it a 1998 CHEVY VAN WITH 200,000 MILES.rUNS GREAT ,EASY STARTS ON -30 DEGREE WEATHER WITH INSTANT OIL PRESSURE. Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
Best I Have Ever UsedI use this product in my 1989 Toyota pickup truck. This truck has 360,000 miles on it and is going strong. I also use Amsoil in all of my other vehicles and would not consider anything else. Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
Only oil I use.I run a fleet of vehicles and we use Amsoil in all of our vehicles. We get great life from all of them. Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
GT CasThis product was used in a Ford Mustang GT CS Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
Great oroduct and I will definitely purchase moreI use this oil in my vehicle because it meets my manufacturer''s specifications. Also, I noticed after about a hundred or so miles that a nuicanse tick went away. Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
Great productPut it in my track camaro, 2013 SS 1LE, last year april so 2015. Had about 4 track day HPDEs then car stored for 6 winter months, metro detroit michigan, unheated garage. Took car out this april did 2 veeery hard track days on same oil, hit 300f on oil with average around 295F for 6 20 minute sessions.... Total now 3500miles for a year on amsoil filter. Sent for lab analysis to blackstine labs oil was in great conditions no issues. Put another 8 in the ls3!!! Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
Its the only thing i run in my 2012 boss 302.I have swapped all 3 vehicles to amsoil SS motor oil Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
I would use this oil again.this oil has been synthetic for a long time .I was just waiting for 5w-50 to come out. Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
This is my go to product for my Boss 302!This is the only product I trust in my 738hp 2013 Boss 302 Mustang. This is my daily driver and play toy. The signature series has great life in my supercharged application which makes the comparable pricing a bargain! Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
What the Boss has for BreakfastMy '13 Boss 302 takes an odd oil grade....5W-50...and only a few brands offer it...and when they do it's usually formulated for older Muscle cars....so it's loaded with Zinc additives...very detrimental to modern catalytic converters....plugs them up. Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
Reviewed by MacGyver: Great oil for a great motorcycle - BMW R1200GSFinding a rare viscosity like 5w50 in a synthetic oil is difficult. I was very glad to find it in Amsoil, a company well known and trusted for it's excellence in quality. The BMW R1200GS with it's high-compression engine, is an adventure motorcycle built to go anywhere from Siberia to the Sahara. Using Amsoil Signature Series 5w50 100% Synthetic provides improved lubrication at start-up and excellent operating protection in all temperature ranges. Because the BMW R1200GS uses a dry clutch, the options for motor oil are broader than using only motorcycle oils. Signature Series 100% Synthetic Motor Oil (AMR) is the perfect oil for my machine and will be the only oil used from this point forward. Thank you for providing shipping within Canada to avoid the hassle and expense of ordering from outside the country. Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
Reviewed by Dave Scott: Thank you - 2014 FORD MUSTANG 5.8LThank you amsoil for making a 5w50 oil. Being a rare viscosity OEM's charge premium price whilst the performance is no where near premium. Now with amsoil signature series 5w50, I get better price and great performance and extended drain intervals. A true winner. Item Reviewed: SAE 5W-50 Signature Series 100% Synthetic Motor Oil (AMR)
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AMSOIL Signature Series Synthetic Motor Oil provides reserve protection, allowing you to go longer between oil changes if you choose up to 25,000 miles, 700 hours of operation or one year, whichever comes first*. Our unique synthetic formulation and long-drain additive system are inherently stable to resist oxidation and neutralize acids over longer periods. Signature Series is designed to deliver outstanding engine protection, cleanliness and performance over extended drain intervals - guaranteed. It provides peace of mind so you can fit oil changes into your schedule.
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It's the ONLY oil I will allow to be used for my Shelby GT 500! Provides the greatest protection for the high performance engine!